Glass Guards is made up of hard glass which is very strong and used as a permanent solution to keep using it for a very long period of time. These Glass Screens are very easy to clean with any window surface cleaner. They are come out with steel metal rods which are permanent and portable also. They are easy to convert and movable from its height and distance. An  Average Height of a Peron are between 5 to 6 Feet so the Height of a portable Screen are need to be at that point where both can feel safe.